/*
*   ZVIDITELNENI OVLADACICH PRVKU NA WEBU
*   - pri prvnim navstiveni ukaze uzivateli vsechny ovladaci prvky
*   - pri dalsich nekolika navstiveni zobrazuje sipky na ovladaci prvky
*   - az uz to uzivatel pochopi tak se nezobrazuje nic...
*
*   - az vyprsi platnost cookiess (uzivatel dlouho nenavstivil web), tak se
*     mu znovu ukazou ovladaci prvky
*/

var platnostCookies = 14; // doba platnosti cookie ve dnech
var pocetZobrazeniSipek = 10; // kolikrat musim navstivit stranky, aby se prestaly zobrazovat navigacni sipky u horniho menu


var MyCookie = {
    Write:function(name,value,days) {
        var D = new Date();
        D.setTime(D.getTime()+86400000*days)
        document.cookie = escape(name)+"="+escape(value)+
            ((days == null)?"":(";expires="+D.toGMTString()))+";path=/"
        return (this.Read(name) == value);
    },
    Read:function(name) {
        var EN=escape(name)
        var F=' '+document.cookie+';', S=F.indexOf(' '+EN);
        return S==-1 ? null : unescape(     F.substring(EN=S+EN.length+2,F.indexOf(';',EN))    );
    }
}


function navigace() {
  if ((visits=MyCookie.Read('Visits')) == null ) {  // neni cookies? tak ho vytvorim
      MyCookie.Write('Visits', '1', platnostCookies )
      if ( MyCookie.Read('Visits') != null ) animujNavigaci();
  }
  else if ((visits=MyCookie.Read('Visits')) < pocetZobrazeniSipek ) {
      document.getElementById("horniMenu").className = "jsSipka"; //vypne zobrazovani sipek v hornim menu
      MyCookie.Write('Visits', (parseInt(visits)+1) + "", platnostCookies ) //inkrementuje navstevu
    }
    else {
      MyCookie.Write('Visits', pocetZobrazeniSipek + "", platnostCookies ) //prodlouzi platnost cookies
    }
}

function animujNavigaci() {
  // panel jazyku
  window.setTimeout('document.getElementById("jazyky2").className = "js";',1000);
  window.setTimeout('document.getElementById("jazyky2").className = "";',1400);
  window.setTimeout('document.getElementById("jazyky2").className = "js";',1700);
  window.setTimeout('document.getElementById("jazyky2").className = "";',2100);
  window.setTimeout('document.getElementById("jazyky2").className = "js";',2400);
  window.setTimeout('document.getElementById("jazyky2").className = "";',2600);

  // horni menu
  window.setTimeout('document.getElementById("sipka1").style.display = "block";',2900);
  window.setTimeout('document.getElementById("sipka1").style.display = "none";',3500);
  window.setTimeout('document.getElementById("sipka2").style.display = "block";',3700);
  window.setTimeout('document.getElementById("sipka2").style.display = "none";',4300);
  window.setTimeout('document.getElementById("sipka3").style.display = "block";',4500);
  window.setTimeout('document.getElementById("sipka3").style.display = "none";',5100);
  window.setTimeout('document.getElementById("horniMenu").className = "js";',5300);
  window.setTimeout('document.getElementById("horniMenu").className = "";',5550);
  window.setTimeout('document.getElementById("horniMenu").className = "js";',5700);
  window.setTimeout('document.getElementById("horniMenu").className = "";',5800);

  // ikony vpravo
  window.setTimeout('document.getElementById("sipka4_1").style.display = "block";',6300);
  window.setTimeout('document.getElementById("sipka4_1").style.display = "none";',6900);
  window.setTimeout('document.getElementById("sipka4_2").style.display = "block";',7200);
  window.setTimeout('document.getElementById("sipka4_2").style.display = "none";',7800);
  window.setTimeout('document.getElementById("sipka4_3").style.display = "block";',8000);
  window.setTimeout('document.getElementById("sipka4_3").style.display = "none";',8600);
  window.setTimeout('document.getElementById("ikony").className = "js";',8800);
  window.setTimeout('document.getElementById("ikony").className = "";',9050);
  window.setTimeout('document.getElementById("ikony").className = "js";',9300);
  window.setTimeout('document.getElementById("ikony").className = "";',9400);

  // hlavni menu
  window.setTimeout('document.getElementById("menu").className = "js";',9700);
  window.setTimeout('document.getElementById("menu").className = "";',10100);
  window.setTimeout('document.getElementById("menu").className = "js";',10400);
  window.setTimeout('document.getElementById("menu").className = "";',10700);
  window.setTimeout('document.getElementById("menu").className = "js";',11000);
  window.setTimeout('document.getElementById("menu").className = "";',11200);
  window.setTimeout('document.getElementById("menu").className = "js";',11300);
  window.setTimeout('document.getElementById("menu").className = "";',11400);

}